79455391 divided by 251 
We want to figure out the number of times 79455391 can be divided by 251.

On to step 1:
251 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 251

On to step 2:
79 divided by 251 is 0 with a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 79 to get 79.
Fetch the next digit (4) from the dividend, attach it to 79 and continue: 794 / 251

Going ahead to step 3:
251 can be fit into 794 3 times, resulting in a remainder of 41.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 41 after subtracting 753 from 794.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 251

Advancing to step 4:
The number 251 fits into 415 1 times, leaving a remainder of 164.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
If we subtract 251 from 415, we get 164.
Include the next digit (5) from the dividend after 164, then repeat: 1645 / 251

Step 5:
251 can be fit into 1645 6 times, resulting in a remainder of 139.
Write down 6 as next digit of the result. 
Result so far: 316.0
Subtracting 1506 from 1645 leaves us with 139.
Grab the next digit (3) from the dividend, add it to 139, then carry on: 1393 / 251

Moving on to step 6:
251 goes into 1393 5 times with a remainder of 138.
The number 5 becomes the next digit in our result. 
Result so far: 3165.0
Deduct 1255 from 1393 and we're left with 138.
Grab the next digit (9) from the dividend, add it to 138, then carry on: 1389 / 251

Let's proceed to step 7:
The number 251 fits into 1389 5 times, leaving a remainder of 134.
Write down 5 as next digit of the result. 
Result so far: 31655.0
If we take 1255 away from 1389, we end up with 134.
Take the next digit (1) from the dividend and append it to 134, then repeat: 1341 / 251

On to step 8:
251 goes into 1341 5 times with a remainder of 86.
The number 5 becomes the next digit in our result. 
Result so far: 316555.0
The remainder is 86 after subtracting 1255 from 1341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 9:
If we divide 860 by 251, we get 3 and a remainder of 107.
The number 3 becomes the next digit in our result. 
Result so far: 316555.3
If we take 753 away from 860, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 10:
The number 251 fits into 1070 4 times, leaving a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 316555.34
Subtract 1004 from 1070 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 11:
251 goes into 660 2 times with a remainder of 158.
Use 2 as the next digit of our solution. 
Result so far: 316555.342
If we subtract 502 from 660, we get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 12:
The number 251 fits into 1580 6 times, leaving a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 316555.3426
Deduct 1506 from 1580 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 13:
When dividing 740 by 251, we get 2 with a remainder of 238.
The next digit of our result is 2. 
Result so far: 316555.34262
The remainder is 238 after subtracting 502 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 14:
2380 divided by 251 is 9 with a remainder of 121.
The number 9 becomes the next digit in our result. 
Result so far: 316555.342629
Subtracting 2259 from 2380 leaves us with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Moving on to step 15:
The number 251 fits into 1210 4 times, leaving a remainder of 206.
Record the quotient 4 as the next digit in the result. 
Result so far: 316555.3426294
The remainder is 206 after subtracting 1004 from 1210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Step 16:
If we divide 2060 by 251, we get 8 and a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 316555.34262948
Deduct 2008 from 2060 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Our division results in 316555.34262948 with a remaining 5.2e-08.